81204039

素因数分解:

$3^6\times 7^1\times {\mathrm{15913}}^1$

素因数の和:15938

約数の個数: 28

約数和(自身を含む): 139152016

約数和(自身を除く): 57947977

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 15913, 47739, 111391, 143217, 334173, 429651, 1002519, 1288953, 3007557, 3866859, 9022671, 11600577, 27068013, 81204039]

約数ペア:

[(1, 81204039), (3, 27068013), (7, 11600577), (9, 9022671), (21, 3866859), (27, 3007557), (63, 1288953), (81, 1002519), (189, 429651), (243, 334173), (567, 143217), (729, 111391), (1701, 47739), (5103, 15913)]